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An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)

Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 369

An illustration from An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth, 1888, leaf 369
r moveable about the point C,the power P always acting at the distance BC, and the weightW at the distance CA. Therefore P : W::CA : CB. Thatis, the weight and power will be in equilibrio when the powerP is to the weight W reciprocally as the radii of the circleswhere they act, or as the radius of… … Chai. I. MECHANICS AND STATICS. :;49

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